Any diet for fast weight loss in a week leads to weight loss, but it has disadvantages. It can be tough and light, simple and effective, protein and buckwheat, rice and fruit. The most effective diets for fast weight loss: a selection of the best systems and techniques with descriptions, rules, advantages, possible difficulties and contraindications. In the fast paced pace of life, not everyone manages to take care of themselves perfectly. Many are familiar with such a situation when it is necessary to put the figure in order in a week or a month before an important event, holiday, vacation at sea.